How Fencing Material is Calculated
The most important step is accurately determining the **net length** of fence required. This is the total perimeter of your area minus the width of any gates or openings.
Perimeter Formula:
$$\text{Perimeter} = 2 \times (\text{Length} + \text{Width})$$ $$\text{Net Fence Length} = \text{Perimeter} - \text{Gate Opening}$$ This is the total linear distance your fence panels will cover.
Key Factors Affecting Quantity
Fence Panels (The Linear Section)
- **Calculation:** $\text{Panels} = \frac{\text{Net Fence Length}}{\text{Panel Length}} \times \mathbf{1.05}$ (waste factor).
- **Waste Factor:** We use a $\mathbf{5\%}$ waste factor to account for necessary cuts, uneven terrain, and minor mistakes. Always round this number **up** to the nearest whole panel.
Fence Posts (Support & Structure)
Post Calculation Rule
- **Standard Post Count:** You typically need $\mathbf{1}$ post per panel to support the ends, $\mathbf{1}$ extra post to start the run, and $\mathbf{2}$ additional posts dedicated to framing the gate.
- **Gate Posts:** These are crucial. Gates require two strong, often larger, posts to support the weight and hardware.
Pro Tip for Gates:
If you have **multiple gates**, be sure to **add the width of all gates** in the input field, and remember to include an additional two gate posts for each extra gate in your final manual count.